9 June 2026

Nanoco Group PLC

("Nanoco" or the "Company")

Glass Lewis recommends voting for delisting resolution

Nanoco Group plc (LSE: NANO), notes the voting recommendations published by Glass Lewis & Co ("Glass Lewis") in relation to the Group's forthcoming General Meeting to be held on 19 June 2026.

This follows the Group's announcement on 27 May 2026 that it is the Board's intention to seek shareholder approval for the proposed cancellation of the Ordinary Shares from the Official List, and from admission to trading on the main market for listed securities of the London Stock Exchange.

Glass Lewis, the independent proxy adviser has recommended that shareholders vote FOR the company's resolution to delist the company from the London Stock Exchange, reinforcing the Board's own position.

As outlined in full on 27 May 2026, the Board believes that by taking further measures to reduce the Company's operating costs and carefully investing its remaining resources in existing high-potential business areas, greater value can be generated for Shareholders. Subsequent to any cancellation, Shareholders will continue to be able to trade in Ordinary Shares through the company's Matched Bargain Facility.

The recommendation comes in advance of the general meeting to be held at 10.30 a.m. on 19 June 2026 for the purposes of obtaining the necessary approvals. Both the Cancellation and the Re-registration require the approval of not less than 75 per cent. of the votes cast by Shareholders (whether present in person or by proxy).

Liam Gray, Interim CEO of Nanoco, commented:

"We welcome the recommendation from Glass Lewis, which reflects an independent assessment of the Board's proposals. The Board remains confident that cancellation of the listing is the right course of action to reduce costs and preserve capital as we focus on delivering value for shareholders.

We encourage all shareholders to vote in favour of the resolutions at the general meeting on 19 June and remind those holding through nominee accounts to check their platform's internal deadline."

Voting queries

Shareholders are strongly encouraged to exercise their vote. If you hold your shares through a broker, nominee, or investment platform, please be aware that your platform's internal deadline for submitting voting instructions is likely to be significantly earlier than the proxy voting deadline of 10.30 a.m. on 17 June 2026. Please check with your broker or platform as soon as possible.

For guidance on how to vote through the major UK investment platforms, a platform voting guide has been made available on the Company's website at www.nanocotechnologies.com/investors/documents-circulars/

For any queries relating to shareholder voting, please contact Sodali & Co at [email protected]

- Ends -

Nanoco Group plc:

Jalal Bagherli, Executive Chairman                                                                                                              +44 (0)1928 761 404

Liam Gray, Interim CEO & Company Secretary

Sodali & Co

Pete Lambie

Elly Williamson                                                                                                                                                +44 (0)79 3535 1934

Oliver Banks

Anthony Kluk
Keyvan Amirghassemi

[email protected]

Cavendish Capital Markets Limited (Financial Adviser and Corporate Broker):

Ed Frisby / George Lawson (Corporate Finance)                                                                                        +44 (0) 20 7220 0500

Ella Bedford (Corporate Broking)

Jasper Berry (Sales)

Notes for editors:

About Nanoco Group plc

Nanoco (LSE: NANO) is a nanomaterial production and licensing group, specialising in the production of its patented cadmium free quantum dots (CFQD®) and other patented nanomaterials for use in the electronics industries. Founded in 2001 and headquartered in Runcorn, UK, Nanoco continues to build out a world-class, patent-protected IP portfolio alongside its existing scaled up production facilities for commercial orders.

Nanomaterials are materials with dimensions typically in the range 1 - 100 nm. Nanomaterials have a range of useful properties, including optical and electronic. Quantum dots are a subclass of nanomaterial that have size-dependent optical and electronic properties. Within the sphere of quantum dots, the Group exploits different characteristics of the quantum dots to target different performance criteria that are attractive to specific markets or end-user applications such as the Sensor, Electronics and Display markets. Nanoco's CFQD® quantum dots are free of cadmium and other toxic heavy metals, and can be tuned to emit light at different wavelengths across the visible and infrared spectrum, rendering them useful for a wide range of display applications. Nanoco's HEATWAVE™ quantum dots can be tuned to absorb light at different wavelengths across the near-infrared spectra, rendering them useful for applications including cameras and image sensors.

Nanoco is listed on the Main Market of the London Stock Exchange, holds the LSE's Green Economy Mark, and trades under the ticker symbol NANO. For further information please visit: www.nanocotechnologies.com